Portable memory device



FIG. 1 is a front view of a portable memory device;

FIG. 2 is a rear view thereof;

FIG. 3 is a left view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a perspective view thereof;

FIG. 7 is a perspective view thereof, showing the cover in a fully open position; and,

FIG. 8 is a perspective view thereof, showing the cover in a partially open position.

The right view is a mirror image of the left view. 

CLAIM The ornamental design for a portable memory device, as shown and described. 